Renesas Electronics unveiled a new wireless solution that supports the Bluetooth Smart near-field wireless communication standard. The new RL78/G1D group of microcontrollers (MCU) has been developed by combining the company’s low-power RF transceiver technology for Bluetooth Low Energy (BLE) with its expertise on consumer and industrial MCUs, and on-chip peripheral devices necessary for wireless communication.
By employing an evaluation kit and Bluetooth-SIG qualified protocol stack, the new MCUs enable system designers to conduct evaluation of wireless characteristics and initial evaluation of communication behaviours. The MCUs are also provided with a PC GUI tool for easy manipulation of these components.
In addition to smartphones, BLE is also suitable for use in devices linked by serial communication technologies such as UARTs and for implementing communication between units within a single piece of equipment. Eliminating the need for wired connections between such units provides greater design freedom and simplifies maintenance. This technology therefore has the potential to bring about major changes in embedded devices.
The current consumption of the RL78/G1D is among the lowest in the industry (3,5 mA during reception and 4,3 mA during transmission). A newly added, adaptable RF technology adjusts the power consumption during wireless operation to the optimal level to match the communication distance.
The device integrates on-chip the balun elements that otherwise would have to be provided in an external antenna connection circuit. This makes it possible simply to connect the RF transceiver signal terminals to the external antenna terminals without the need for discrete balun elements.
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